关于j2me里面各种漂亮进度条的制作方法！

该方法是采用内部类来实现的

import javax.microedition.midlet.*;import javax.microedition.lcdui.*;/** * Loading演示 * @author gaogao * */class MainCanvas    extends Canvas    implements Runnable {        //程序状态          static final int LOADING = 0;          static final int GAMEING = 1;        //程序状态控制器          int state = LOADING;        //主线程          Thread thread = null;        //是否loading完毕，          boolean isLoaded = false;        //内部类，新开读取资源的 线程          class Loading implements Runnable         {                    //内线程                    Thread innerThread = null;                    public Loading()                 {                              innerThread = new Thread(this);                              innerThread.start();                    }                    int counter = 300;                    public void run()                 {                              //模拟读取资源                              //把下面的东西改成读取资源的代码即可                              while (counter > 0)                         {                                        counter--;                                        try                                {                                                  Thread.sleep(20);                                        }                                        catch (Exception ex)                                 {                                                                        }                              }      //loading结束                              isLoaded = true;                    }          }          Loading loading = null;          public MainCanvas()         {                    loading = new Loading();                    thread = new Thread(this);                    thread.start();          }         int loadingCounter = 0;        //绘制..          public void paint(Graphics g)         {                    g.setColor(0);                    g.fillRect(0, 0, getWidth(), getHeight());                    switch (state)                 {                              case LOADING:                         {                                       g.setColor(0XFFFFFF);                                        g.drawString("LOADING" + ">>>>>".substring(0, loadingCounter), getWidth() >>1 , getHeight() >>1,Graphics.HCENTER | Graphics.TOP);                                        loadingCounter = ++loadingCounter % 5;                        }                              break;                                                      case GAMEING:                         {                                        g.setColor(0XFFFFFF);                                        g.drawString("GAME", getWidth() >> 1, getHeight() >> 1, Graphics.HCENTER | Graphics.TOP);                        }                              break;                    }          }                  public void run()         {                    while (true)                 {                              try                         {                                        Thread.sleep(100);                              }                              catch (Exception ex)                         {                                                              }                              if (isLoaded)                         {                                        loading = null;                                        state = GAMEING;                              }                              repaint(0, 0, getWidth(), getHeight());                              serviceRepaints();                    }          }}public class Main extends MIDlet {          MainCanvas mc;          public void startApp()         {                   if (mc == null)                 {                             mc = new MainCanvas();                              Display disp = Display.getDisplay(this);                              disp.setCurrent(mc);                    }          }                  public void destroyApp(boolean bool)         {                        }                  public void pauseApp()         {                        }}